How many different interior mirrors fit a 69 c/20?

[into69z]

I have replaced the windshield and gasket on my 69 c/20. My Dad owned it for a few years and also replaced the windshields but when he did, he changed out to a 72 type mirror that sticks to the glass. I want to install a new mirror in the factory location. The screws are still there from the original mount but the mount is long gone. I have two mirrors that should fit, one a standard and one a deluxe but as you can see the screws/holes do not line up. My truck is a custom camper trim level. I took pictures of the mounting area, and you can see the outline of the bracket cover and the three screws. The holes measure around 2 3/8ths x 3" (or so). The two brackets I have are only 2" (or so).
So I guess my question is, was there another mirror that came out in 69?

Also-this truck has been in the family since 1973 and has not been molested so ...............thanks Steve